A flattenable hose and its manufacturing method

Abstract

A flattenable hose comprising: an inner rubber layer, an outer rubber layer, and a tubular fabric layer positioned between the inner rubber layer and the outer rubber layer, the inner rubber layer and the outer rubber layer being thermoplastic polyurethane or polyvinyl chloride The tubular fabric layer includes an outer reinforcement layer and an inner reinforcement layer. The outer reinforcement layer and the inner reinforcement layer are independent plain, twill or satin weave structures woven by warp and weft yarns. The outer reinforcement layer and the inner reinforcement layer Binding is done using weft yarns. The invention also proposes a method for manufacturing the flattenable hose. The flattenable hose of the present invention can withstand high pressure of conveying liquid, thereby improving the conveying flow rate of the hose; it has good softness under storage conditions, and is convenient for coiling or folding storage.

Description

technical field [0001] The invention relates to the field of liquid hoses, more specifically, to a flat liquid delivery hose with double-layer fabric reinforcement layers coated with glue on the inside and outside. Background technique [0002] The flattenable hose is a positive pressure delivery hose that uses a ring braid as a reinforcement layer, and the inside of the reinforcement layer or the inner and outer surfaces of the reinforcement layer are coated with rubber. The patent document with the notification number CN2646519Y discloses a coilable liquid conveying hose. The structure of the hose is the inner and outer layers of the high-strength synthetic fiber reinforced layer, and polyurethane elastomer is used as the rubber material. Hot coating, while forming the inner and outer rubber layers of the hose. The patent document with the notification number CN202082508U discloses a new type of liquid conveying hose. The hose is made of high-strength fiber reinforced lay...

AI Technical Summary

Problems solved by technology

[0003] The above two types of hoses all use a single-layer hose reinforcement layer. In order to improve the pressure bearing strength of the hose, the fineness of the warp and weft yarns and the density of the warp and weft yarns are increased. Due to the limitations of the structure and production equipment, there are the following deficiencies: : (a) simply increasing the fineness of the reinforcement layer will reduce the softness of the reinforcement layer and the corresponding hose products, making it difficult to flatten or fold the hose; (b) the increase in the thickness of the reinforcement layer also increases the subsequent coating process Difficulty, the hose is difficult to form

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